Vermont Castings Intrepid INDVRBDSB Installation & Operating Manual page 9

Vertical Termination
A vertical vent system must terminate no less than 8' (2.44
m) and no more than 40' (12 m) above the appliance flue
collar. There is a restrictor plate installed in the stove from the
factory. A extra vent restrictor plate (included in the manual
bag) can be added within the venting to reduce draft in a
high draft situation. Fine tune adjustments can be made
to compensate for draft characteristics that could interfere
with proper flame height and operation. Note: There is no
adjustability within the firebox for high draft situations.
A vertically terminated vent system must also conform to the
following criteria:
• No more than four 90° elbows may be used.
• Two 45° elbows may be substituted for one 90° elbow.
No more than six 45° elbows may be used.
• Vent must rise a minimum of 2 feet (305 mm) before
offset is used.
• Termination height must conform to roof clearance as
specified in Figure 2.9.
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2ND FLUE
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RESTRICTOR
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1 FLUE
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RESTRICTOR
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0
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Horizontal Run (in feet)
Figure 2.9 - Vertical vent termination window.
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Vermont Castings • Intrepid DV-IFT Owner's Manual_R20 • 11/21
Vent Termination Clearances
When planning the installation, consider the location of the
vent terminal and clearances. Some of the most common
clearances to keep in mind are shown in Figure 2.10.
Important: All vent clearances must be maintained.
Check your vent termination clearances against Figures
2.10 and 2.11.
The vent should be placed so that people cannot be burned
by accidentally touching the vent surfaces when the stove
is operating.
The vent termination should be located where it cannot be
damaged by such things as automobile doors, lawn mowers
or snowblowers and it should be located away from areas
where it could become blocked by snow, etc.
Some considerations are:
• Obstructions or impediments to venting.
• Nearby combustible materials that could come into
contact with combustion exhaust gases.
• Other nearby openings {within 12" (305 mm)} through
which exhaust gas could reenter the building.
• All vegetation within 3' (76 mm) that may interfere with
the draft.
Other factors that influence where the installation will be
sited include the location of outside walls, where additional
heat may be desired in the home, where the family members
gather most regularly, and perhaps most importantly, the
distance limitations of the venting system.
IMPORTANT
The horizontal termination must not be recessed into
the exterior wall or siding.
Horizontal vent runs must be level toward the vent
termination.
Clearances around the vent termination must be
maintained.
For installations using DuraVent pipe, parallel installations
with minimum wall clearance have restricted access for
connecting the Horizontal Vent Cap straps to the vent
pipe. See the maker's instructions for recommended
installation procedures.
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